Support for drop-box pattern chains



F. 1.. FURGA].

jwr/Z IQ W y: Samws SUPPORT FOR DROP BOX PA'iTERN CH'AINS Filed April 10, 1924 Patented Dec. 23, 1924.

FRANK L. FURGAL, or wARnnn, MASSACHUSETTS.

SUPPORT non DROP-BOX PATTERN CHAINS.

Application filed. April 10, 1924. Serial No. 705,639.

To all whom it may concern: 1

Be it known that I, FRANK L. FURGAL, a citizen of the United States, residing at \Varren, in the county of lVorcester and State of ltlassachusetts, have invented anew and useful Support for Drop-Box Pattern Chains, of which the following is a specilication.

This invention relates to a loom of the type in which a plurality of shuttle boxes are provided at one or both sides of the loom. These shifting shuttle boxes or drop boxes are controlled by box shifting mechanism which is actuated in accordance with the indications of a drop box pattern chain. These chains are frequently very long and chains exceeding thirty feet in length are not uncommon. The support and storage of these long chains is sometimes a difiicult problem on account of the limited space available for such purposes.

It is the object of my invention to provide an improved chain support by the use of which a great length of drop box pattern chain may be easily and conveniently stored and from which it may be fed to the pattern mechanism.

With this general object in View, my in vention relates particularly to certain arrangements and combinations of parts which will be hereinafter described and more specifically pointed out in the appended claims.

A preferred form of the invention is shown in the drawings in which Fig. 1 is a partial rear elevation of a portion of a loom embodying my improvements;

Fig. 2 is a sectional elevation taken along the line 22 in Fig. 1; and

Fig. 3 is a partial sectional plan view, taken along the line 33 in Fig. 1.

Referring to the drawings, I have shown certain parts of a loom including a loom side or frame 10, dobby cylinder gears 11 and 12, one of a series of vibrator levers 13 having a vibrator gear 14, and a pattern cylinder 15 which feeds a harness pattern chain 16 and a drop box pattern chain :20. The harness chain as shown is of relatively short length and is carried by a bracket 21. The parts thus far described are of the usual construction and in themselves form no partof my invention, which relates particularly to a support for storing the drop box pattern chain 20. I l

In the preferred form, my improved chain support comprises upper and lower frame members 23 and 2-1- having one end of each bent at right angles as indicated at M in Fig. 3. These framemembers 23 and 24: are secured to the loom side 10 in any con- Venient manner, as by bolts 25. At their outer ends, the frame members 23 and 24 may be connected by a brace or link 26. The upper frame member 23 and the brace 26 may also be secured by a bolt 27 to the bracket 21 for the harness chain 16.

A plurality of guide rolls 30 are mounted on studs 31 which are secured in the upper frame member 23. The rolls may be held Arr.rrrIosFics.

on the studs by cotter pins 32 or in any other convenient manner. A second series of rolls 33 are mounted on studs 34 which are secured in upright bars or roll supports 35. These roll supports 35 are provided with a series of holes 36 and are secured in vertically adjusted position upon the lower frame member 24 by bolts 37. Washers 38 may be provided on the upper studs 31 so that the upper and lower rolls may be vertically aligned.

Having described the construction of my improved chain support, the utility and advantages thereof will be readily apparent. Each of the supporting bars 35 may be adjusted .by inserting its bolt 37 through anyone of the holes 36. In this manner the capacity of the chain support may be varied to store chains of widely differing lengths. If all of the supports and rolls are in use and each support is placed in its extreme lower position, a very long chain may be stored in a very limited space. lVhen a shorter chain is in use, one or more of the lower supports may be removed or the supports may be raised to their higher positions, thus decreasing the amount of storage.

My improved chain support is thus quickly and easily adapted for the storage of any usual length of drop box pattern chain which may be used in the operation of a loom. The construction is simple and reliable and may be easily adapted to looms already in use, to provide a more convenient and satisfactory chain storage.

Having thu described my invention and the advantages thereof, I do not Wish to be limited to the details herein disclosed otherwisethan as set forth in the claims,

but What I claim is 1- 1. In a loom, a support for a drop box pattern chain comprising a series of guide rolls mounted on fixed'pivots, a second series of guide rolls mounted for, Vertical adjustment in said support, and means to hold the rolls of said second series in adjusted. position, said latter means permitting separate verticaladjust'ment of each roll in saidsec- 0nd series to vary the storage capacity of-the chain support.

2-. In a loom, a loom frame, a support for a drop box pattern chain comprising upper and lower framemembers fixed to the loom frame, aplurality of guide rolls ,mounted on: one of said frame members, a

plurality of roll supports, means to adjustably secure said supports to the second frame member, and additional guide rolls mounted on said adjustable supports.

3. In a loom, a loom frame, a supportfor a drop box pattern chain comprising upper and lower frame members fixed to the. 100-111 frame, a, brace connecting the outer end of said frame members and connectedalso to a portion of the loom frame, and a series of guide rolls supported by each frame member, the ro-llsof one series being adjustable on the associated frame member to vary the storage capacity of the chain support.

In testimony whereof I have hereunto affixed my signature.

FRANK L. FURGA-L. 

